Practicing Multiplication


You will learn:
More about multiplying by one-digit numbers.


Why learn this?
You can find out how many times you need, such as cups for picnics.


Vanessa sees a flash of lightening. She hears thunder 7 seconds later. Vanessa knows that sound travels at about 350 meters per second. About how far away is the lightening from Vanessa?





external image 111.jpg

So, the lightening is about 2,450 meters away from Vanessa.
QUESTIONS




  • Find the product.
  1. 212
    x 4
    -----
  2. 250
    x 9
    -----
  3. 351
    x 6
    -----

    • Vanessa:
      1. 848
      2. 2250
      3. 2106

Jida:
1) 212 2) 250 3) 351 x 4 x 9 x 6 _ _ _ 848 2250 2106



  • Monique sees lightening, counts 5 seconds, and then hears thunder. She knows that sound travels at about 350 meters per second. About how far away is the lightening from Monique? Show your work.


    • Vanessa:
      1. 5 x 350 m/sec = 1750 m/sec


Jida: 1) 5x350 = 1750 m/sec

  • Navin collects baseball cards. He had $11.00 at the beginning of the day. He bought 3 cards for $3.50 each. How much money did Navin have at the end of the day? Show your work.


    • Vanessa:
      1. $11 - (3 x $3.50) = $11 - $10.50 = $0.50 ; Navin was left with $0.50

Jida

1) 11-(3-3.50) = 0.50$